Alloy 686 o se tasi-vaega, austenitic Ni-Cr-Mo-W uʻamea ofoina mataʻina corrosion-tetee i le tele o siosiomaga ogaoga.O lona maualuga nickel (Ni) ma le molybdenum (Mo) e maua ai le teteʻe lelei i le faʻaitiitia o tulaga, ma le maualuga o le chromium (Cr) e ofoina atu le tetee i le faʻamaʻiina o ala o faasalalauga.Molybdenum (Mo) ma le tungsten (W) fesoasoani i le tetee atu i le pala i totonu e pei ole pitting.O le u'amea (Fe) e va'aia lelei e fa'aleleia ai mea totino.O le kaponi maualalo (C) e fesoasoani e fa'aitiitia le tafega o tuaoi o saito e fa'amautu ai le pala i sone e a'afia i le vevela o so'oga uelo.
Alloy | % | Fe | Cr | Ni | Mo | Mg | W | C | Si | S | P | Ti |
686 | Min. | - | 19.0 | paleni | 15.0 | - | 3.0 | - | - | - | - | 0.02 |
Max. | 2.0 | 23.0 | 17.0 | 0.75 | 4.4 | 0.01 | 0.08 | 0.02 | 0.04 | 0.25 |
Malosi | 8.73 g/cm³ |
Liu liusuavai | 1338-1380 ℃ |
Tulaga | Malosi fa'asa Rm N/mm² | Tuuina atu le malosi Rp 0. 2N/mm² | Fa'aumiumi pei % |
Fofo togafitiga | 810 | 359 | 56 |
Pa/Ai | Uaea | Aveese/Uila | Pepa/Ipu | Paipa/Tupa | Fa'ailogaina | Fa'amau |
ASTM B 462, ASTM B 564 ASME SB 564, ASTM B 574 DIN 17752 | ASTM B462 ASTM B564 ASTM B 574 DIN 17752 | ASTM B 575 ASTM B 906 ASME SB 906 DIN 17750 | ASTM B 575 ASTM B 906 DIN 17750 | ASME SB163,ASTM B 619 ASTM B 622 ASTM B 626 ASTM B751 ASTM B 775 ASME SB 829 | ASTM B 462, ASTM B 564 ASME SB 564, ASTM B 574 ASME B 574, DIN 17752 | ASTM F 467/ F 468/ F 468M;SAE/AMS J2295, J2271, J2655, J2280 |
1.Good tetee i le faʻaitiitia o tulaga;
2.Good tetee i oxidizing ala o faasalalauga;
3. Resistance i le lautele, pitting ma crevice corrosion faateleina.
fa'asalalauga fa'amalosi i le fa'agaioiina o vaila'au, fa'atonutonuina o le filogia, gaosiga o pulu ma pepa, ma fa'aogaina o otaota.